A264323 Number of permutations of [n] with exactly four (possibly overlapping) occurrences of the consecutive pattern 3412.

1, 89, 5461, 238356, 8368831, 259770975, 7542478135, 211794493290, 5870838954710, 162745118970610, 4549825111681964, 128994813976541176, 3722621639161251074, 109622707753571938234, 3299453321046315967098, 101610430484526744949716, 3203896974449174366163207

Offset

10,2

Links

Alois P. Heinz, Table of n, a(n) for n = 10..180

Crossrefs

Column k=4 of A264319.

Sequence in context: A017752 A282478 A342049 * A100419 A328355 A264135

Adjacent sequences: A264320 A264321 A264322 * A264324 A264325 A264326

Keyword

nonn

Author

Alois P. Heinz, Nov 11 2015

Status

approved